Perth January winds the most anomalous easterly on record
Remember how the Fremantle Doctor failed for the highest number of January days since January 1976 in January this year?
Well the general flow over Perth in January 2021 was the most anomalous easterly on record by a large margin based on 850 hPa zonal wind anomalies as well as surface zonal wind anomalies.
January 850 hPa zonal (east-west) wind anomalies (negative indicates easterly anomalies):
Well the general flow over Perth in January 2021 was the most anomalous easterly on record by a large margin based on 850 hPa zonal wind anomalies as well as surface zonal wind anomalies.
January 850 hPa zonal (east-west) wind anomalies (negative indicates easterly anomalies):
January 10 meters zonal (east-west) wind anomalies (negative indicates easterly anomalies):
January 2021 MSLP anomaly showing anomalous high pressure to the south and anomalous low pressure to the northwest during January:
January 2021 850 hPa zonal (east-west) wind anomalies (negative indicates easterly anomalies) map showing a large area of anomalous easterlies over southwestern Australia and to the south of Australia:
January 2021 10 meters zonal (east-west) wind anomalies (negative indicates easterly anomalies) map showing a large area of anomalous easterlies over southwestern Australia and to the south of Australia:
Source: ERA-5